Instant pot spaghetti squash is the easiest way to cook a whole spaghetti squash with hardly any work. So, I use this method to make cheesy garlic spaghetti squash. It is an easy and flavorful low-carb meal.

overhead photo of Cheesy Garlic Spaghetti Squash

Ever since discovering how much easier and quicker it is to cook spaghetti squash in the Instant Pot, I have been making many more meals with it. The squash is a healthy substitute for pasta, so I’ve been using it a lot lately to lighten up our meals. You can serve it as a side dish or combine it with protein to make a main dish.

photo of a spaghetti squash in an Instant Pot

Cooking Spaghetti Squash in the Instant Pot

Unlike the oven and microwave methods for cooking spaghetti squash, you do not need to cut the squash open to pressure cook it in the Instant Pot. Instead, the squash is cooked whole. One of the toughest parts about preparing spaghetti squash for me is trying to cut it into two squash halves, so this has been a game changer.

Before being added to the Instant Pot, make half-inch piercings into the skin to allow it to vent during cooking.

The Instant Pot also cooks the squash faster. It takes about 15 minutes of cooking time to fully cook a 2 lb spaghetti squash.

When it’s done, the squash skin is very soft and easy to cut open.

How to Make Cheesy Garlic Spaghetti Squash in the Instant Pot

After the squash is cooked in the Instant Pot, a garlic butter sauce is prepared in the Instant Pot using the saute function. You can then also add any vegetables of your choice– I chose broccoli– to the pot to be sauteed.

You can scrape the squash strands out of the peel and add them to the garlic butter sauce in the Instant Pot. Just stir and toss it all together, and you’ll have saucy, cheesy spaghetti squash.

Vegetable Choices

I served my spaghetti squash with broccoli. Other good choices are spinach or kale.

photo of Cheesy Garlic Spaghetti Squash with broccoli

More Instant Pot Spaghetti Squash Recipes

​You can use this method for pretty much any spaghetti squash recipe. Here are some of my favorites:

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photo of cooked spaghetti squash with broccoli
5 from 6 votes

Instant Pot Cheesy Garlic Spaghetti Squash

Easy cheesy spaghetti squash cooked entirely in the Instant Pot. 

Ingredients

  • 2 lb spaghetti squash
  • 4 tbsp butter
  • 4 garlic cloves, minced
  • 1 cup broccoli florets, cut into bite-sized pieces
  • 2 tbsp chicken broth
  • 1/2 cup grated Parmesan cheese, plus additional for garnish
  • ½ cup shredded mozzarella cheese
  • fresh ground black pepper

Instructions
 

  • Pierce the squash all over with a sharp knife, making ½ inch cuts into the skin, so that the squash can vent when cooking. I  made about 20 cuts, spacing the piercings about 1 inch apart.
  • Add 1 cup of water to Instant Pot. Place in trivet. Place squash on trivet.
  • Seal and cook on high pressure for 15 minutes. Perform a quick release when it is finished cooking.
  • Carefully remove squash and set aside to allow to cool slightly.
  • Drain water from Instant Pot and set to saute function. Add in garlic and butter. Cook until butter is melted. Add in broccoli and broth and cook until broccoli is tender but still crisp. Switch Instant Pot to warm function.
  • Slice squash in half. Scoop and remove seeds. Shred squash with a fork. Add shredded squash into Instant Pot. Add in cheese. Toss squash in cheese until evenly coated and cheese is melted. If mixture gets too dry, you can add a little more chicken broth. 
  • Garnish with fresh ground pepper and more Parmesan cheese if desired.

Notes

  • This recipe uses the Instant Pot 7-in-1 Multi-Functional Pressure Cooker (6 Quart Version).*  If you are using a different size, you will need to adjust cooking times and water level.
  • I served my spaghetti squash with broccoli. I’ve also made it before with kale or spinach.
  • *Some of the links contained in this post are affiliate links. Much like referral codes, this means I earn a small commission if you purchase a product I referred (at no extra charge to you).
Serving: 0.25of recipe, Calories: 254kcal, Carbohydrates: 14g, Protein: 10g, Fat: 18g, Saturated Fat: 11g, Sodium: 342mg, Fiber: 3g, Sugar: 5g, NET CARBS: 11
The nutrition information provided are only estimates based on an online nutritional calculator. This is not a comprehensive list of all the nutrients in the recipe (i.e., does not include vitamins, cholesterol, etc). I am not a certified nutritionist. Please consult a nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.
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